Genetic and Circulating Biomarker Data Improve Risk Prediction for Pancreatic Cancer in the General Population.

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
Authors
Abstract

BACKGROUND: Pancreatic cancer is the third leading cause of cancer death in the United States, and 80% of patients present with advanced, incurable disease. Risk markers for pancreatic cancer have been characterized, but combined models are not used clinically to identify individuals at high risk for the disease.METHODS: Within a nested case-control study of 500 pancreatic cancer cases diagnosed after blood collection and 1,091 matched controls enrolled in four U.S. prospective cohorts, we characterized absolute risk models that included clinical factors (e.g., body mass index, history of diabetes), germline genetic polymorphisms, and circulating biomarkers.RESULTS: Model discrimination showed an area under ROC curve of 0.62 via cross-validation. Our final integrated model identified 3.7% of men and 2.6% of women who had at least 3 times greater than average risk in the ensuing 10 years. Individuals within the top risk percentile had a 4% risk of developing pancreatic cancer by age 80 years and 2% 10-year risk at age 70 years.CONCLUSIONS: Risk models that include established clinical, genetic, and circulating factors improved disease discrimination over models using clinical factors alone.IMPACT: Absolute risk models for pancreatic cancer may help identify individuals in the general population appropriate for disease interception.

Year of Publication
2020
Journal
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
Volume
29
Issue
5
Pages
999-1008
Date Published
05/2020
ISSN
1538-7755
DOI
10.1158/1055-9965.EPI-19-1389
PubMed ID
32321713
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